Re: Communicate with AudioUnit from C program?
Re: Communicate with AudioUnit from C program?
- Subject: Re: Communicate with AudioUnit from C program?
- From: Paul Davis <email@hidden>
- Date: Fri, 30 Mar 2018 10:22:19 -0400
The "headless" version of Ardour (all the functionality, no GUI) certainly
does this. Its not a problem. We don't use XCode or any Apple tools except
their somewhat ancient "utility libs" which are just wrappers around AU to
make it slightly more C++ idiomatic.
On Fri, Mar 30, 2018 at 9:10 AM, Igor Clark <email@hidden> wrote:
> Hi all,
>
> Is it possible to load an existing AudioUnit MIDI plugin and interact it
> with it from a CLI program written in C? I'd like to be able to use
> commercial plug-ins in my MIDI processing app.
>
> I'm comfortable with how to communicate between C & C++ using 'extern'
> etc, so that's not the main issue. Rather, I'm wondering whether it's
> possible to have a C CLI app that loads the AU and sends MIDI passages to
> it, so that the AU processes the data (ideally async) and then returns its
> result back to the C app. I guess it's effectively writing an AU host app,
> but does that all have to be done in Xcode, or is it possible to do it as a
> straight C/C++ program using clang/llvm at the shell?
>
> Also, the AU Hosting Guide docs
> <https://developer.apple.com/library/content/documentation/MusicAudio/Conceptual/AudioUnitHostingGuide_iOS/Introduction/Introduction.html>
> talk about I/O, Mixer and Effect units - is there any other material that
> focuses on how to do MIDI in AU? Or is a adaptor/translator layer necessary?
>
> Thanks for any pointers,
> Igor
>
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